Step 5: Install and configure the host (CentOS and Rocky)
You can install CentOS or Rocky on any system that meets the requirements for Lenovo XClarity Administrator.
Before you begin
If you intend to implement a high-availability environment, see Implementing high availability (CentOS and Rocky) for more information about setting up the cluster.
Ensure that the host meets the prerequisites that are defined in Hardware and software prerequisites.
Ensure that the host system is in the same network as the devices that you want to manage.
- You must implement either a virtually separate data and management network topology or a single data and management network topology.
- You cannot use XClarity Administrator to apply firmware updates to that managed server. Even when only some of the firmware is applied with immediate activation, XClarity Administrator forces the target server to restart, which would restart XClarity Administrator as well. When applied with deferred activation, only some firmware is applied when the XClarity Administrator host is restarted.
- If you use a server in a Flex System chassis, ensure that the server is set to automatically power on. You can set this option from the CMM web interface by clicking , then selecting the server, and selecting Auto Power for the Auto Power On Mode.
Procedure
Install and configure CentOS or Rocky Linux on the host using instructions that are provided with your CentOS or Rocky Linux distribution.
During installation, you are prompted to select a disk drive where the image is to be installed. If you intend to run XClarity Administrator from a local disk drive, ensure that the disk drive has a minimum of 192 GB of space plus the size of the installation image.
Ensure that you select VirtIO as the Ethernet device when installing XClarity Administrator on a KVM host. The performance of the default Realtek Ethernet driver is poor and should not be used.